./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:30:26,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:30:26,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:30:26,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:30:26,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:30:26,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:30:26,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:30:26,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:30:26,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:30:26,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:30:26,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:30:26,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:30:26,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:30:26,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:30:26,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:30:26,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:30:26,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:30:26,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:30:26,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:30:26,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:30:26,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:30:26,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:30:26,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:30:26,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:30:26,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:30:26,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:30:26,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:30:26,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:30:26,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:30:26,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:30:26,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:30:26,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:30:26,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:30:26,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:30:26,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:30:26,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:30:26,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:30:26,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:30:26,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:30:26,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:30:26,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:30:26,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:30:27,001 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:30:27,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:30:27,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:30:27,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:30:27,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:30:27,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:30:27,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:30:27,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:30:27,006 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:30:27,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:30:27,007 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:30:27,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:30:27,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:30:27,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:30:27,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:30:27,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:30:27,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:30:27,009 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:30:27,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:30:27,009 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:30:27,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:30:27,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:30:27,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:30:27,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:30:27,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:30:27,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:30:27,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:30:27,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:30:27,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:30:27,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:30:27,013 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:30:27,013 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:30:27,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:30:27,014 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a [2022-11-21 17:30:27,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:30:27,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:30:27,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:30:27,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:30:27,353 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:30:27,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2022-11-21 17:30:30,432 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:30:31,026 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:30:31,027 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2022-11-21 17:30:31,074 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/data/a4da39432/706f6dba7b1b414097e39749e49795b8/FLAGb941de0e6 [2022-11-21 17:30:31,093 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/data/a4da39432/706f6dba7b1b414097e39749e49795b8 [2022-11-21 17:30:31,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:30:31,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:30:31,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:30:31,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:30:31,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:30:31,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:30:31" (1/1) ... [2022-11-21 17:30:31,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef4c3cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:31, skipping insertion in model container [2022-11-21 17:30:31,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:30:31" (1/1) ... [2022-11-21 17:30:31,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:30:31,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:30:31,598 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208] [2022-11-21 17:30:32,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:30:32,902 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:30:32,932 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208] [2022-11-21 17:30:33,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:30:33,926 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:30:33,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33 WrapperNode [2022-11-21 17:30:33,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:30:33,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:30:33,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:30:33,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:30:33,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:34,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:35,496 INFO L138 Inliner]: procedures = 58, calls = 18195, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 39852 [2022-11-21 17:30:35,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:30:35,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:30:35,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:30:35,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:30:35,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:35,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:35,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:35,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:36,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:36,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:36,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:36,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:37,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:30:37,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:30:37,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:30:37,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:30:37,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (1/1) ... [2022-11-21 17:30:37,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:30:37,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:30:37,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:30:37,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f84924-86f2-43c7-8476-b6cd02f7034b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:30:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:30:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-21 17:30:37,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-21 17:30:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-21 17:30:37,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-21 17:30:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:30:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-21 17:30:37,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-21 17:30:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-21 17:30:37,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-21 17:30:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-21 17:30:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-21 17:30:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:30:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-21 17:30:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-21 17:30:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-21 17:30:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-21 17:30:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-21 17:30:37,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-21 17:30:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-21 17:30:37,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-21 17:30:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:30:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-21 17:30:37,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-21 17:30:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:30:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-21 17:30:37,266 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-21 17:30:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-21 17:30:37,267 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-21 17:30:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 17:30:37,268 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 17:30:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:30:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:30:37,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:30:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-21 17:30:37,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-21 17:30:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-21 17:30:37,270 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-21 17:30:37,271 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-21 17:30:37,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-21 17:30:39,792 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:30:39,795 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:31:35,383 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:31:35,451 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:31:35,451 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:31:35,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:31:35 BoogieIcfgContainer [2022-11-21 17:31:35,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:31:35,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:31:35,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:31:35,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:31:35,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:30:31" (1/3) ... [2022-11-21 17:31:35,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7c017c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:31:35, skipping insertion in model container [2022-11-21 17:31:35,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:30:33" (2/3) ... [2022-11-21 17:31:35,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7c017c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:31:35, skipping insertion in model container [2022-11-21 17:31:35,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:31:35" (3/3) ... [2022-11-21 17:31:35,486 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2022-11-21 17:31:35,510 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:31:35,510 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:31:35,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:31:35,984 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@295eda7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:31:35,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:31:36,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 12240 states, 7996 states have (on average 1.3156578289144572) internal successors, (10520), 8109 states have internal predecessors, (10520), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) [2022-11-21 17:31:36,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2022-11-21 17:31:36,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:31:36,994 INFO L195 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2022-11-21 17:31:36,995 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:31:37,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:31:37,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1377856296, now seen corresponding path program 1 times [2022-11-21 17:31:37,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:31:37,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524119167] [2022-11-21 17:31:37,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:31:37,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms